Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
P
S
Ni
Cr
N
Nb
<=0.08
<=1.00
<=2.50
<=0.045
<=0.030
7.50-10.50
18.00-20.00
0.15-0.30
<=0.15
Mechanical Properties
Tensile Strength
>=690 MPa
Yield Strength
>=345 MPa
Elongation
>=35%
Hardness
<=248 HB
Condition
Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser